/* cuanlab rack: eurorack instrument identity. Duotone phosphor green + amber LED on steel. */
:root {
  --bg: oklch(0.16 0.008 160);
  --panel: oklch(0.21 0.01 160);
  --panel-edge: oklch(0.3 0.012 160);
  --well: oklch(0.13 0.008 160);
  --ink: oklch(0.9 0.012 120);
  --ink-muted: oklch(0.66 0.015 120);
  --silk: oklch(0.56 0.014 120);
  --phos: #45e0a0;
  --phos-dim: oklch(0.55 0.11 158);
  --amber: #e3b25c;
  --red: #e25c4d;
  --focus: oklch(0.85 0.16 155);
  --screw: oklch(0.42 0.01 120);
  --f-disp: "Big Shoulders", "Arial Narrow", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, monospace;
  --f-body: "IBM Plex Sans", system-ui, sans-serif;
  --rail-h: 3.4rem;
  --spring: cubic-bezier(0.3, 1.4, 0.4, 1);
}

* { box-sizing: border-box; margin: 0; }
html { color-scheme: dark; }
body {
  background:
    repeating-linear-gradient(to bottom, transparent 0 118px, oklch(0.19 0.009 160) 118px 121px),
    radial-gradient(circle at 8px 8px, oklch(0.2 0.009 160) 1.2px, transparent 1.6px) 0 0 / 44px 121px,
    var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
#view:focus, #view:focus-visible { outline: none; } /* programmatic focus target, not an interactive ring */
a { color: var(--phos); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: var(--f-mono); }
.muted { color: var(--ink-muted); }

/* ---- rails ---- */
.rail-top, .rail-bottom {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: 0.6rem 1rem;
  background: linear-gradient(to bottom, oklch(0.24 0.01 160), oklch(0.2 0.01 160));
  border-bottom: 1px solid var(--panel-edge);
  box-shadow: 0 1px 0 oklch(0.1 0.005 160);
}
.rail-bottom { border-top: 1px solid var(--panel-edge); border-bottom: none; margin-top: auto; font-size: 0.8rem; color: var(--ink-muted); justify-content: space-between; }
.wordmark { display: flex; flex-direction: column; line-height: 1; }
.wordmark-main { font-family: var(--f-disp); font-weight: 700; font-size: 1.7rem; letter-spacing: 0.14em; color: var(--ink); }
.wordmark-sub { font-family: var(--f-mono); font-size: 0.55rem; letter-spacing: 0.32em; color: var(--silk); margin-top: 2px; }
.rail-top nav { display: flex; gap: 1rem; margin-left: auto; }
.rail-top nav a { font-family: var(--f-disp); font-weight: 500; letter-spacing: 0.18em; font-size: 0.95rem; color: var(--ink-muted); padding: 0.3rem 0.15rem; }
.rail-top nav a[aria-current="true"] { color: var(--phos); border-bottom: 2px solid var(--phos); }
.health { display: flex; gap: 0.9rem; }
.led-group { display: flex; align-items: center; gap: 0.35rem; }
.led-label { font-family: var(--f-mono); font-size: 0.6rem; letter-spacing: 0.14em; color: var(--silk); }
.led { width: 9px; height: 9px; border-radius: 50%; background: var(--silk); box-shadow: 0 0 0 2px oklch(0.12 0.005 160) inset; display: inline-block; }
.led.ok { background: var(--phos); box-shadow: 0 0 6px var(--phos); }
.led.warn { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.led.bad { background: var(--red); box-shadow: 0 0 6px var(--red); }
.led.off { background: oklch(0.35 0.01 120); box-shadow: none; }

/* ---- main / rack grid ---- */
main { padding: 1rem; max-width: 1180px; width: 100%; margin: 0 auto; }
.rack-title { display: flex; align-items: baseline; gap: 0.8rem; margin: 0.6rem 0.2rem 0.4rem; flex-wrap: wrap; }
.rack-title h1, .rack-title h2 { font-family: var(--f-disp); font-weight: 700; letter-spacing: 0.12em; font-size: 1.15rem; color: var(--ink-muted); }
.verdict { font-family: var(--f-mono); font-size: 0.78rem; color: var(--amber); }
.verdict.brains { color: var(--phos); }
.rack { display: grid; grid-template-columns: 1fr; gap: 0.8rem; margin-bottom: 1.4rem; }
@media (min-width: 640px) { .rack { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .rack { grid-template-columns: 1fr 1fr 1fr; } }

/* ---- module (agent card) ---- */
.module {
  position: relative;
  background: linear-gradient(172deg, oklch(0.23 0.01 160), var(--panel) 55%);
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  padding: 0.85rem 0.9rem 0.75rem;
  box-shadow: 0 2px 8px oklch(0.08 0.005 160 / 0.55), inset 0 1px 0 oklch(0.32 0.01 160 / 0.5);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.9rem;
  color: inherit;
}
a.module:hover { text-decoration: none; border-color: var(--phos-dim); }
.module .screw { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, oklch(0.55 0.01 120), var(--screw) 70%); box-shadow: inset 0 -1px 1px oklch(0.1 0 0); }
.screw.tl { top: 5px; left: 5px; } .screw.tr { top: 5px; right: 5px; }
.screw.bl { bottom: 5px; left: 5px; } .screw.br { bottom: 5px; right: 5px; }
.module-head { grid-column: 1 / -1; display: flex; align-items: center; gap: 0.5rem; min-width: 0; }
.module-name { font-family: var(--f-disp); font-weight: 700; font-size: 1.25rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.module-kind { font-family: var(--f-mono); font-size: 0.55rem; letter-spacing: 0.18em; padding: 2px 6px; border: 1px solid var(--panel-edge); border-radius: 3px; color: var(--ink-muted); }
.module-kind.brain { color: var(--phos); border-color: var(--phos-dim); }
.module-kind.ext { color: var(--amber); border-color: var(--amber); }
.module-brain { grid-column: 1 / -1; font-family: var(--f-mono); font-size: 0.62rem; color: var(--silk); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: -0.3rem; }
.vu { width: 118px; }
.readouts { display: grid; grid-template-columns: auto auto; gap: 0.05rem 0.9rem; align-content: center; font-family: var(--f-mono); font-size: 0.78rem; }
.readouts .k { color: var(--silk); font-size: 0.6rem; letter-spacing: 0.12em; align-self: center; }
.readouts .v { text-align: right; color: var(--ink); }
.v.pos { color: var(--phos); }
.v.neg { color: var(--red); }
.module-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 0.6rem; font-family: var(--f-mono); font-size: 0.62rem; color: var(--silk); }
.gen-tag { color: var(--amber); }

/* ---- VU meter ---- */
.vu svg { display: block; width: 100%; height: auto; }
.vu .needle { transform-origin: 60px 54px; transition: transform 900ms var(--spring); }
.vu-label { font-family: var(--f-mono); font-size: 0.55rem; letter-spacing: 0.15em; fill: var(--silk); }
.vu-value { font-family: var(--f-mono); font-size: 0.72rem; font-weight: 600; fill: var(--ink); }

/* ---- agent page ---- */
.back { font-family: var(--f-mono); font-size: 0.75rem; display: inline-block; margin: 0.4rem 0; }
.agent-grid { display: grid; gap: 0.9rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .agent-grid { grid-template-columns: 3fr 2fr; } .span2 { grid-column: 1 / -1; } }
.panel {
  background: var(--panel); border: 1px solid var(--panel-edge); border-radius: 6px;
  padding: 0.9rem 1rem; position: relative;
  box-shadow: 0 2px 8px oklch(0.08 0.005 160 / 0.5);
}
.panel h3 { font-family: var(--f-disp); font-weight: 500; letter-spacing: 0.16em; font-size: 0.9rem; color: var(--silk); margin-bottom: 0.55rem; }
.scope-wrap { background: var(--well); border-radius: 4px; border: 1px solid oklch(0.1 0.005 160); padding: 0.4rem; }
.scope-wrap svg { display: block; width: 100%; height: auto; }
.scope-meta { display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: 0.65rem; color: var(--silk); padding: 0.3rem 0.2rem 0; }

/* ---- tape ---- */
.tape { list-style: none; padding: 0; font-family: var(--f-mono); font-size: 0.75rem; }
.tape li { border-top: 1px dashed oklch(0.3 0.01 160); padding: 0.45rem 0.1rem; }
.tape li:first-child { border-top: 0; }
.tape .row { display: flex; gap: 0.6rem; align-items: baseline; flex-wrap: wrap; }
.tape .side-buy { color: var(--phos); }
.tape .side-sell { color: var(--amber); }
.tape .thesis { color: var(--ink-muted); font-family: var(--f-body); font-size: 0.78rem; margin-top: 0.2rem; }
details.thesis-fold summary { cursor: pointer; color: var(--silk); font-size: 0.68rem; }
details.thesis-fold summary:hover { color: var(--ink); }

/* ---- journal / constitution ---- */
.journal { list-style: none; padding: 0; }
.journal li { padding: 0.4rem 0 0.4rem 1.1rem; position: relative; font-size: 0.85rem; border-top: 1px dashed oklch(0.3 0.01 160); }
.journal li:first-child { border-top: 0; }
.journal li::before { content: "▸"; position: absolute; left: 0; color: var(--phos-dim); }
.journal .conf { font-family: var(--f-mono); font-size: 0.62rem; color: var(--silk); }
.constitution { white-space: pre-wrap; font-size: 0.82rem; color: var(--ink-muted); line-height: 1.55; }
.lineage { display: flex; gap: 0.5rem; flex-wrap: wrap; font-family: var(--f-mono); font-size: 0.7rem; align-items: center; }
.jack { display: inline-flex; align-items: center; gap: 0.35rem; border: 1px solid var(--panel-edge); border-radius: 999px; padding: 0.2rem 0.6rem; color: var(--ink-muted); }
.jack::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--well); box-shadow: inset 0 0 0 2px var(--amber); }
.patch-note { color: var(--silk); }

/* ---- seasons ---- */
.season-table { width: 100%; border-collapse: collapse; font-family: var(--f-mono); font-size: 0.75rem; }
.season-table th { text-align: left; font-family: var(--f-disp); font-weight: 500; letter-spacing: 0.12em; font-size: 0.75rem; color: var(--silk); padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--panel-edge); }
.season-table td { padding: 0.4rem 0.5rem; border-bottom: 1px dashed oklch(0.28 0.01 160); }
.table-scroll { overflow-x: auto; }

/* ---- states ---- */
.boot, .error-module { display: grid; place-items: center; padding: 3rem 1rem; }
.boot-module, .error-module .inner { background: var(--panel); border: 1px solid var(--panel-edge); border-radius: 6px; padding: 1.2rem 1.6rem; text-align: center; }
.error-module .inner { border-color: var(--red); }
.empty { color: var(--silk); font-family: var(--f-mono); font-size: 0.75rem; padding: 0.6rem 0; }

/* ---- tooltip ---- */
.tooltip {
  position: fixed; z-index: 10; pointer-events: none;
  background: oklch(0.24 0.012 160); border: 1px solid var(--phos-dim); border-radius: 4px;
  padding: 0.35rem 0.55rem; font-family: var(--f-mono); font-size: 0.68rem; color: var(--ink);
  box-shadow: 0 4px 14px oklch(0.05 0 0 / 0.6);
}
.noscript { padding: 2rem; text-align: center; }

/* ---- LED pulse (transform/opacity only) ---- */
@keyframes ledpulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }
.led.ok { animation: ledpulse 3.2s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  .vu .needle { transition: none; }
  .led.ok { animation: none; }
}